[Test tweak] Use textual output to compare results rather than binary diff
[Test tweak] Use textual output to compare results rather than binary diff

This test depends on comparing the binary .swiftmodule files (with
cmp) using the sib and non-sib paths. However, the binary .swiftmodule
can differ slightly due to type sugar along this path, so use a
textual diff instead... which is also far more readable.

stephentyrone/swift,practicalswift/swift,hooman/swift,aschwaighofer/swift,harlanhaskins/swift,lorentey/swift,danielmartin/swift,harlanhaskins/swift,CodaFi/swift,stephentyrone/swift,xedin/swift,karwa/swift,devincoughlin/swift,gregomni/swift,danielmartin/swift,atrick/swift,devincoughlin/swift,stephentyrone/swift,glessard/swift,austinzheng/swift,gregomni/swift,airspeedswift/swift,practicalswift/swift,natecook1000/swift,allevato/swift,gribozavr/swift,aschwaighofer/swift,stephentyrone/swift,brentdax/swift,practicalswift/swift,allevato/swift,parkera/swift,tkremenek/swift,nathawes/swift,jmgc/swift,practicalswift/swift,shahmishal/swift,lorentey/swift,aschwaighofer/swift,xedin/swift,allevato/swift,jmgc/swift,parkera/swift,atrick/swift,shajrawi/swift,nathawes/swift,amraboelela/swift,shahmishal/swift,amraboelela/swift,jopamer/swift,xedin/swift,amraboelela/swift,xedin/swift,danielmartin/swift,CodaFi/swift,ahoppen/swift,alblue/swift,apple/swift,xedin/swift,austinzheng/swift,shahmishal/swift,benlangmuir/swift,tkremenek/swift,brentdax/swift,natecook1000/swift,sschiau/swift,jopamer/swift,danielmartin/swift,apple/swift,alblue/swift,rudkx/swift,parkera/swift,gregomni/swift,brentdax/swift,gregomni/swift,JGiola/swift,jckarter/swift,austinzheng/swift,JGiola/swift,austinzheng/swift,gribozavr/swift,amraboelela/swift,glessard/swift,karwa/swift,roambotics/swift,roambotics/swift,benlangmuir/swift,rudkx/swift,sschiau/swift,alblue/swift,shahmishal/swift,huonw/swift,huonw/swift,benlangmuir/swift,jmgc/swift,roambotics/swift,devincoughlin/swift,gregomni/swift,nathawes/swift,sschiau/swift,sschiau/swift,parkera/swift,benlangmuir/swift,karwa/swift,aschwaighofer/swift,lorentey/swift,gregomni/swift,allevato/swift,brentdax/swift,lorentey/swift,tjw/swift,hooman/swift,devincoughlin/swift,jmgc/swift,apple/swift,hooman/swift,shahmishal/swift,shajrawi/swift,huonw/swift,lorentey/swift,airspeedswift/swift,shajrawi/swift,harlanhaskins/swift,tjw/swift,lorentey/swift,atrick/swift,airspeedswift/swift,karwa/swift,apple/swift,danielmartin/swift,atrick/swift,glessard/swift,aschwaighofer/swift,tkremenek/swift,xwu/swift,huonw/swift,amraboelela/swift,gribozavr/swift,nathawes/swift,roambotics/swift,rudkx/swift,brentdax/swift,atrick/swift,danielmartin/swift,ahoppen/swift,hooman/swift,allevato/swift,parkera/swift,benlangmuir/swift,natecook1000/swift,xwu/swift,sschiau/swift,apple/swift,shajrawi/swift,JGiola/swift,practicalswift/swift,glessard/swift,lorentey/swift,gribozavr/swift,hooman/swift,jopamer/swift,shajrawi/swift,devincoughlin/swift,benlangmuir/swift,devincoughlin/swift,huonw/swift,jmgc/swift,huonw/swift,alblue/swift,roambotics/swift,brentdax/swift,karwa/swift,shahmishal/swift,shajrawi/swift,jckarter/swift,JGiola/swift,glessard/swift,airspeedswift/swift,alblue/swift,nathawes/swift,rudkx/swift,jckarter/swift,jopamer/swift,JGiola/swift,shahmishal/swift,apple/swift,parkera/swift,aschwaighofer/swift,harlanhaskins/swift,amraboelela/swift,huonw/swift,allevato/swift,xwu/swift,natecook1000/swift,tjw/swift,CodaFi/swift,jckarter/swift,sschiau/swift,devincoughlin/swift,jckarter/swift,austinzheng/swift,alblue/swift,jmgc/swift,CodaFi/swift,xwu/swift,gribozavr/swift,shajrawi/swift,harlanhaskins/swift,atrick/swift,gribozavr/swift,karwa/swift,xedin/swift,practicalswift/swift,austinzheng/swift,harlanhaskins/swift,glessard/swift,ahoppen/swift,xedin/swift,xwu/swift,stephentyrone/swift,airspeedswift/swift,xwu/swift,hooman/swift,nathawes/swift,gribozavr/swift,tjw/swift,practicalswift/swift,practicalswift/swift,jmgc/swift,harlanhaskins/swift,danielmartin/swift,parkera/swift,ahoppen/swift,tkremenek/swift,tkremenek/swift,jopamer/swift,amraboelela/swift,tjw/swift,nathawes/swift,natecook1000/swift,CodaFi/swift,sschiau/swift,stephentyrone/swift,tjw/swift,aschwaighofer/swift,tkremenek/swift,roambotics/swift,alblue/swift,CodaFi/swift,xwu/swift,natecook1000/swift,jopamer/swift,karwa/swift,jckarter/swift,parkera/swift,JGiola/swift,karwa/swift,rudkx/swift,rudkx/swift,shajrawi/swift,ahoppen/swift,tjw/swift,jopamer/swift,airspeedswift/swift,xedin/swift,airspeedswift/swift,sschiau/swift,austinzheng/swift,tkremenek/swift,jckarter/swift,CodaFi/swift,natecook1000/swift,allevato/swift,brentdax/swift,gribozavr/swift,hooman/swift,shahmishal/swift,lorentey/swift,devincoughlin/swift,stephentyrone/swift,ahoppen/swift